Means and method for drilling rock

Details Means and method for drilling rock Means and method for drilling rock

E - Fixed Constructions

21

B

255/35

E21B 15/04 (2006.01)

Patent

CA 1092090

ABSTRACT OF THE DISCLOSURE A rock drilling machine is swingably carried on a pivotable drill boom. The rock drilling machine is fed along a drilling axis in response to a feeding movement applied by the drill boom. A set angle value is fed to a servo control system. During drilling, an actual angle value in form of the angular position in space of the rock drilling machine is fed to the servo control system. The servo control system governs continuously a positioning motor which positions the rock drilling machine relative to the drill boom in such a way that the actual and set valves coincide, thereby causing the rock drilling machine to follow the drilling axis.

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